David T. Lewis uploaded a new version of Collections to project The Trunk:
http://source.squeak.org/trunk/Collections-cbc.689.mcz

==================== Summary ====================

Name: Collections-cbc.689
Author: cbc
Time: 13 April 2016, 3:28:58.221861 pm
UUID: 84ae8fa7-91ee-4f47-8bdf-eadcac286a1e
Ancestors: Collections-mt.688

Fix comment in Dictioanry class>>newFrom: so that the examples actually work.

=============== Diff against Collections-mt.688 ===============

Item was changed:
  ----- Method: Dictionary class>>newFrom: (in category 'instance creation') -----
  newFrom: aDict 
  	"Answer an instance of me containing the same associations as aDict.
  	 Error if any key appears twice."
  	| newDictionary |
  	newDictionary := self new: aDict size.
  	aDict associationsDo:
  		[:x |
  		(newDictionary includesKey: x key)
  			ifTrue: [self error: 'Duplicate key: ', x key printString]
  			ifFalse: [newDictionary add: x copy]].
  	^ newDictionary
  
+ "	Dictionary newFrom: {1->#a. 2->#b. 3->#c}
+ 	{1->#a. 2->#b. 3->#c} as: Dictionary
+ 	Dictionary newFrom: {1->#a. 2->#b. 1->#c}
+ 	{1->#a. 2->#b. 1->#c} as: Dictionary
- "	NewDictionary newFrom: {1->#a. 2->#b. 3->#c}
- 	{1->#a. 2->#b. 3->#c} as: NewDictionary
- 	NewDictionary newFrom: {1->#a. 2->#b. 1->#c}
- 	{1->#a. 2->#b. 1->#c} as: NewDictionary
  "!